Hope you are doing well.
1) Delete the previous downloaded file.
rm -rf hadoop-2.2.0.tar.gz
2) Download the hadoop 2.6.0 from the following command because previous link is not working due to server maintainence.
3) Now extract the tar file
tar -xvf hadoop-2.6.0.tar.gz
Please let me know if you face any further issue regarding this.
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edureka! Support Team